Multicenter study with a direct acoustic cochlear implant

Lenarz, Thomas; Zwartenkot, Joost W; Stieger, Christof; Schwab, Burkard; Mylanus, Emmanuel A M; Caversaccio, Marco; Kompis, Martin; Snik, Ad F M; D'hondt, Christiane; Mojallal, Hamidreza (2013). Multicenter study with a direct acoustic cochlear implant. Otology & neurotology, 34(7), pp. 1215-1225. Lippincott Williams & Wilkins 10.1097/MAO.0b013e318298aa76

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OBJECTIVE To confirm the clinical efficacy and safety of a direct acoustic cochlear implant. STUDY DESIGN Prospective multicenter study. SETTING The study was performed at 3 university hospitals in Europe (Germany, The Netherlands, and Switzerland). PATIENTS Fifteen patients with severe-to-profound mixed hearing loss because of otosclerosis or previous failed stapes surgery. INTERVENTION Implantation with a Codacs direct acoustic cochlear implant investigational device (ID) combined with a stapedotomy with a conventional stapes prosthesis MAIN OUTCOME MEASURES Preoperative and postoperative (3 months after activation of the investigational direct acoustic cochlear implant) audiometric evaluation measuring conventional pure tone and speech audiometry, tympanometry, aided thresholds in sound field and hearing difficulty by the Abbreviated Profile of Hearing Aid Benefit questionnaire. RESULTS The preoperative and postoperative air and bone conduction thresholds did not change significantly by the implantation with the investigational Direct Acoustic Cochlear Implant. The mean sound field thresholds (0.25-8 kHz) improved significantly by 48 dB. The word recognition scores (WRS) at 50, 65, and 80 dB SPL improved significantly by 30.4%, 75%, and 78.2%, respectively, after implantation with the investigational direct acoustic cochlear implant compared with the preoperative unaided condition. The difficulty in hearing, measured by the Abbreviated Profile of Hearing Aid Benefit, decreased by 27% after implantation with the investigational direct acoustic cochlear implant. CONCLUSION Patients with moderate-to-severe mixed hearing loss because of otosclerosis can benefit substantially using the Codacs investigational device.

Item Type:

Journal Article (Original Article)

Division/Institute:

04 Faculty of Medicine > Department of Head Organs and Neurology (DKNS) > Clinic of Ear, Nose and Throat Disorders (ENT)

UniBE Contributor:

Stieger, Christof; Caversaccio, Marco and Kompis, Martin

Subjects:

600 Technology > 610 Medicine & health

ISSN:

1531-7129

Publisher:

Lippincott Williams & Wilkins

Language:

English

Submitter:

Martin Kompis

Date Deposited:

07 Mar 2014 09:21

Last Modified:

07 Mar 2014 09:21

Publisher DOI:

10.1097/MAO.0b013e318298aa76

PubMed ID:

23921930

URI:

https://boris.unibe.ch/id/eprint/43545

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